ASTROSAT CZTI

Data Quality Report

Orbit 12225

Creation date: 2024-06-27T16:24:02.853940
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C03_014T01_9000001804_12225cztM0_level2.evt modeM0/AS1C03_014T01_9000001804_12225cztM0_level2_quad_clean.evt
Size (bytes)358,191,36085,847,040
Size341.6 MB 81.9 MB
Events in quadrant A2,646,855575,266
Events in quadrant B3,449,439553,967
Events in quadrant C2,064,596576,534
Events in quadrant D2,357,667554,571

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110030
B0135780
C096810
D0104990

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4836250.516956%
B48364409.098428%
C483630.062035%
D483640.082713%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 4837 4837 6 6 0.12% 0.12%
B 4837 4837 276 276 5.71% 5.71%
C 4837 4837 0 0 0.00% 0.00%
D 4837 4837 4 4 0.08% 0.08%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 1 162 139208 1257.92 541 530 110.2
A 8 15 83060 748.61 541 530 110.2
A 1 178 76832 692.12 541 530 110.2
B 4 239 1000595 10101.73 520 506 99.0
B 3 64 192419 1938.48 520 506 99.0
B 11 51 158881 1599.72 520 506 99.0
C 4 175 7687 58.23 526 527 123.0
C 13 61 3966 27.97 526 527 123.0
C 8 222 3420 23.53 526 527 123.0
D 1 52 234129 1860.75 524 509 125.6
D 13 104 31460 246.52 524 509 125.6
D 2 234 23506 183.17 524 509 125.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter